package com.sky.service.impl;


import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.github.xiaoymin.knife4j.core.util.CollectionUtils;
import com.sky.config.WebSocketServer;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import io.netty.util.internal.ObjectUtil;
import lombok.Value;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import static com.sky.entity.Orders.PENDING_PAYMENT;
import static com.sky.entity.Orders.UN_PAID;


/**
 * 订单
 */
@Service
@Slf4j
public class OrderServiceImpl implements OrderService {
//    @Value("${sky.shop.address}")
//    private String shopAddress;
//
//    @Value("${sky.baidu.ak}")
//    private String ak;
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private WebSocketServer webSocketServer;

//    @Override
//    @Transactional
//    public OrderSubmitVO submit(OrdersSubmitDTO ordersSubmitDTO) {
//        //0、数据校验（校验地址 + 购物车）
//        //校验地址
//        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
//        if (ObjectUtil.isEmpty(addressBook)) {
//            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
//        }
//        checkOutOfRange(addressBook.getCityName() + addressBook.getDistrictName() + addressBook.getDetail());
//        //校验购物车是否为空
//        List<ShoppingCart> cartList = shoppingCartMapper.queryByParams(ShoppingCart.builder().userId(BaseContext.getCurrentId()).build());
//        if (ObjectUtil.isEmpty(cartList)) {
//            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
//        }
//        //1、保存订单信息至订单表
//        Orders orders = new Orders();
//        BeanUtils.copyProperties(ordersSubmitDTO, orders);
//
//        orders.setNumber(String.valueOf(System.currentTimeMillis()));
//        orders.setStatus(PENDING_PAYMENT);
//        orders.setUserId(BaseContext.getCurrentId());
//        orders.setOrderTime(LocalDateTime.now());
//        orders.setPayStatus(UN_PAID);
//        orders.setUserName(addressBook.getConsignee());
//        orders.setPhone(addressBook.getPhone());
//        orders.setAddress(addressBook.getDetail());
//        orders.setConsignee(addressBook.getConsignee());
//        this.orderMapper.insert(orders);
//
//        //2、保存详情数据至订单详情表
//        List<OrderDetail> orderDetails = new ArrayList<>(cartList.size());
//        cartList.forEach(cart -> {
//            OrderDetail orderDetail = new OrderDetail();
//            BeanUtils.copyProperties(cart, orderDetail);
//            orderDetail.setOrderId(orders.getId());
//            orderDetails.add(orderDetail);
//        });
//        this.orderDetailMapper.insertBatch(orderDetails);
//
//        //3、清空购物车
//        shoppingCartMapper.deleteselectShoppingCart(BaseContext.getCurrentId());
//
//        //4、返回Vo
//        return OrderSubmitVO.builder().id(orders.getId()).orderNumber(orders.getNumber())
//                .orderAmount(orders.getAmount()).orderTime(orders.getOrderTime()).build();
//    }

    /**
     * 查看历史订单
     *
     * @param ordersPageQueryDTO
     * @return
     */
    @Override
    public PageResult historyOrder(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(ordersPageQueryDTO.getStatus());
        Page<Orders> orders = orderMapper.page(ordersPageQueryDTO);
        List<OrderVO> list = new ArrayList<>();
        if (orders != null && orders.getTotal() >= 1) {
            for (Orders order : orders) {
                Long orderId = order.getId();
                List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(orderId);
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(order, orderVO);
                orderVO.setOrderDetailList(orderDetails);
                list.add(orderVO);
            }
        }
        return new PageResult(orders.getTotal(), list);
    }

    //用户下单
    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if (addressBook == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        Long userId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(userId);
        //查询当前用户的购物车数据
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.selectShoppingCart(shoppingCart);
        if (shoppingCartList == null || shoppingCartList.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        //构造订单数据
        Orders order = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, order);
        order.setPhone(addressBook.getPhone());
        order.setAddress(addressBook.getDetail());
        order.setConsignee(addressBook.getConsignee());
        order.setNumber(String.valueOf(System.currentTimeMillis()));
        order.setUserId(userId);
        order.setStatus(Orders.PENDING_PAYMENT);
        order.setPayStatus(Orders.UN_PAID);
        order.setOrderTime(LocalDateTime.now());
        //向订单表插入1条数据
        orderMapper.insert(order);
        //订单明细数据
        List<OrderDetail> orderDetailList = new ArrayList<>();
        for (ShoppingCart cart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart, orderDetail);
            orderDetail.setOrderId(order.getId());
            orderDetailList.add(orderDetail);
        }
        //向明细表插入n条数据
        orderDetailMapper.insertBatch(orderDetailList);
        //清理购物车中的数据
        shoppingCartMapper.deleteselectShoppingCart(userId);
        //封装返回结果
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(order.getId())
                .orderNumber(order.getNumber())
                .orderAmount(order.getAmount())
                .orderTime(order.getOrderTime())
                .build();
        return orderSubmitVO;
    }

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);
        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );
        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }
        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));
        return vo;
    }

    /**
     * 支付成功，修改订单状态
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        // 根据订单号查询当前用户的订单
        Orders ordersDB = orderMapper.getByNumberAndUserId(outTradeNo, userId);
        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();
        orderMapper.update(orders);
        Map map = new HashMap();
        map.put("type", 1);//消息类型，1表示来单提醒
        map.put("orderId", orders.getId());
        map.put("content", "订单号：" + outTradeNo);
        //通过WebSocket实现来单提醒，向客户端浏览器推送消息
        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }

    /**
     * 订单详情查询
     *
     * @param id
     * @return
     */
    @Override
    public OrderVO detailForId(Long id) {
        Orders orders = orderMapper.getById(id);
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        List<OrderDetail> orderDetails = orderDetailMapper.getByOrderId(id);
        orderVO.setOrderDetailList(orderDetails);
        return orderVO;
    }

    /**
     * 取消订单
     *
     * @param id
     */
    @Override
    public void userCancel(Long id) throws Exception {
        Orders orders = orderMapper.getById(id);
        if (orders == null) {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if (orders.getStatus() > 2) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders1 = new Orders();
        orders1.setId(orders.getId());
        if (orders.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            weChatPayUtil.refund(
                    orders.getNumber(),
                    orders.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
            orders1.setPayStatus(Orders.REFUND);
        }
        orders1.setStatus(Orders.CANCELLED);
        orders1.setCancelTime(LocalDateTime.now());
        orders1.setCancelReason("用户取消");
        orderMapper.update(orders1);
    }

    /**
     * 再来一单
     *
     * @param id
     */
    @Override
    public void repetition(Long id) {
        Long userId = BaseContext.getCurrentId();
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);
        List<ShoppingCart> shoppingCartList = orderDetailList.stream().map(orderDetail -> {
            ShoppingCart shoppingCart = new ShoppingCart();
            BeanUtils.copyProperties(orderDetail, shoppingCart, "id");
            shoppingCart.setUserId(userId);
            shoppingCart.setCreateTime(LocalDateTime.now());
            return shoppingCart;
        }).collect(Collectors.toList());
        shoppingCartMapper.insertBatch(shoppingCartList);
    }

    /**
     * 订单搜索
     */
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Page<Orders> page = orderMapper.page(ordersPageQueryDTO);
        List<OrderVO> orderVOList = getOrderVoList(page);
        return new PageResult(page.getTotal(), orderVOList);
    }

    //订单数量查询
    @Override
    public OrderStatisticsVO statuses() {
        Integer toBeConfirmed = orderMapper.countStatus(Orders.TO_BE_CONFIRMED);//查询待接单的数量
        Integer confirmed = orderMapper.countStatus(Orders.CONFIRMED);//查询待派送的数量
        Integer delivery = orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);//查询正在派送的数量
        OrderStatisticsVO orderStatisticsVO = new OrderStatisticsVO();
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(delivery);
        return orderStatisticsVO;
    }

    //商家接单
    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders = Orders.builder()
                .id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .build();
        orderMapper.update(orders);
    }

    //商家拒单
    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) throws Exception {
        Orders order = orderMapper.getById(ordersRejectionDTO.getId());
        if (order == null || !order.getStatus().equals(Orders.TO_BE_CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
//        Integer payStatus=order.getPayStatus();
//        if (payStatus ==Orders.PAID){
//            String refund=weChatPayUtil.refund(
//                    order.getNumber(),
//                    order.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//            log.info("申请退钱",refund);
//        }
        Orders orders = new Orders();
        orders.setId(order.getId());
        orders.setStatus(order.getStatus());
        orders.setRejectionReason(ordersRejectionDTO.getRejectionReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override//商家取消订单
    public void cancel(OrdersCancelDTO ordersCancelDTO) throws Exception {
        Orders ordersDB = orderMapper.getById(ordersCancelDTO.getId());

        //支付状态
//        Integer payStatus = ordersDB.getPayStatus();
//        if (payStatus == 1) {
//            //用户已支付，需要退款
//            String refund = weChatPayUtil.refund(
//                    ordersDB.getNumber(),
//                    ordersDB.getNumber(),
//                    new BigDecimal(0.01),
//                    new BigDecimal(0.01));
//            log.info("申请退款：{}", refund);
//        }

        // 管理端取消订单需要退款，根据订单id更新订单状态、取消原因、取消时间
        Orders orders = new Orders();
        orders.setId(ordersCancelDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override
    public void delivery(Long id) {
        Orders ordersDB = orderMapper.getById(id);
        // 校验订单是否存在，并且状态为3
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.CONFIRMED)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为派送中
        orders.setStatus(Orders.DELIVERY_IN_PROGRESS);
        orderMapper.update(orders);
    }


    private List<OrderVO> getOrderVoList(Page<Orders> page) {
        List<OrderVO> ordersVoList = new ArrayList<>();
        List<Orders> ordersList = page.getResult();
        if (!CollectionUtils.isEmpty(ordersList)) {
            for (Orders orders : ordersList) {
                // 将共同字段复制到OrderVO
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                String orderDishes = getOrderDishesStr(orders);
                // 将订单菜品信息封装到orderVO中，并添加到orderVOList
                orderVO.setOrderDishes(orderDishes);
                ordersVoList.add(orderVO);
            }
        }
        return ordersVoList;
    }

    private String getOrderDishesStr(Orders orders) {
        // 查询订单菜品详情信息（订单中的菜品和数量）
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(orders.getId());
        // 将每一条订单菜品信息拼接为字符串（格式：宫保鸡丁*3；）
        List<String> orderDishList = orderDetailList.stream().map(x -> {
            String orderDish = x.getName() + "*" + x.getNumber() + ";";
            return orderDish;
        }).collect(Collectors.toList());
        // 将该订单对应的所有菜品信息拼接在一起
        return String.join("", orderDishList);
    }

    public void complete(Long id) {
        // 根据id查询订单
        Orders ordersDB = orderMapper.getById(id);
        // 校验订单是否存在，并且状态为4
        if (ordersDB == null || !ordersDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)) {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders = new Orders();
        orders.setId(ordersDB.getId());
        // 更新订单状态,状态转为完成
        orders.setStatus(Orders.COMPLETED);
        orders.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    /**
     * 用户催单
     * @param id
     */
    @Override
    public void reminderById(Long id) {
        Orders orders=orderMapper.getById(id);
        if (orders == null){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Map map=new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号:"+orders.getId());
        String s = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(s);
    }

    /**
     * 检查客户的收货地址是否超出配送范围
     *
     * @param address
     */
//    private void checkOutOfRange(String address) {
//        Map map = new HashMap();
//        map.put("address", shopAddress);
//        map.put("output", "json");
//        map.put("ak", ak);
//
//        //获取店铺的经纬度坐标
//        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);
//
//        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
//        if (!jsonObject.getString("status").equals("0")) {
//            throw new OrderBusinessException("店铺地址解析失败");
//        }
//
//        //数据解析
//        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
//        String lat = location.getString("lat");
//        String lng = location.getString("lng");
//        //店铺经纬度坐标
//        String shopLngLat = lat + "," + lng;
//
//        map.put("address", address);
//        //获取用户收货地址的经纬度坐标
//        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);
//
//        jsonObject = JSON.parseObject(userCoordinate);
//        if (!jsonObject.getString("status").equals("0")) {
//            throw new OrderBusinessException("收货地址解析失败");
//        }
//
//        //数据解析
//        location = jsonObject.getJSONObject("result").getJSONObject("location");
//        lat = location.getString("lat");
//        lng = location.getString("lng");
//        //用户收货地址经纬度坐标
//        String userLngLat = lat + "," + lng;
//
//        map.put("origin", shopLngLat);
//        map.put("destination", userLngLat);
//        map.put("steps_info", "0");
//
//        //路线规划
//        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);
//
//        jsonObject = JSON.parseObject(json);
//        if (!jsonObject.getString("status").equals("0")) {
//            throw new OrderBusinessException("配送路线规划失败");
//        }
//
//        //数据解析
//        JSONObject result = jsonObject.getJSONObject("result");
//        JSONArray jsonArray = (JSONArray) result.get("routes");
//        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");
//
//        if (distance > 5000) {
//            //配送距离超过5000米
//            throw new OrderBusinessException("超出配送范围");
//        }
//    }
}
